[EnergyPlus_Support] Re: load analysis

["hbn_pch" <hbn_pch@xxxxxxxxxxxx>]

i'm sorry that i did't describe the my building model clearly.I just 
want to gain the building envelope load(including solar gain),so i 
did't add any other gain such as infiltration,ventilation,internal 
gain, etc.According to your suggestion ,i checked the model setting 
again,but i can't determin where the problem is.The weather file is 
download from web(nanjing)and the clearness in summer design day is 
1.The temp range is 10 in summer design.i choose do desing day 
simulation as  yes and the temperature setpoints in summer is 25.

Another problem:i search former issues and find that if the warning
(inside surface heat balance can not convergence)is few,then the 
value is valid,otherwise ,the value is not valid.But how many warning 
is considered to few?I simulate for annul simulation and there are 
fifteen warning.Is the warning valid?

Third problem:i have ask a problem about the roof shading.But i'm 
puzzled.In i/o,it said that the surface:shading:attached is used for 
wall or roof.but how to define the shading for roof?horizontal or 
vertical shading?if horizontal,then how to define the base surface,it 
is impending.

  thanks very much.
  pch

--- In EnergyPlus_Support@xxxxxxxxxxxxxxx, "Michael J. Witte" 
<mjwitte@g...> wrote:
> Check the location and design day objects (time zone, clearness), 
check the 
> thermostat schedules, check the internal gain schedules.  Does the 
cooling 
> design day have a range of temperature, or is it constant?  Is the 
clearness > 
> 0?  In the RUN CONTROL, set "Do design day simulation" to YES, and 
turn on 
> reporting of thermostat setpoints, internal gains, weather data, 
etc.  This 
> should help determine where the problem is.
> 
> Mike
> 
> 
> On 6 Sep 2005, at 16:32, hbn_pch wrote:
> 
> > Dear all,
> >    i'm puzzled for the zone design cooling load after a 
simulation.i 
> > found that time of the peak cooling load of some zones is 
intricate.for 
> > example:
> > 
> > Zone Sizing, 1F_9, Cooling,   895.09    ,  0.66339E-01,  0.66339E-
01, 
> > SUMDAY, 00:15:00,   29.600    ,  0.19897E-01
> > 
> > Zone Sizing, 1F_4, Cooling,   1253.5    ,  0.92903E-01,  0.92903E-
01, 
> > SUMDAY, 00:30:00,   29.600    ,  0.19897E-01
> > 
> > these two zones faces west,but the time of peak is 00:15:00,is it 
> > possibel?
> > 
> >   thanks
> >   pch
> > 
> > 
> > 
> > 
> > 
> > 
> > The primary EnergyPlus web site is found at:
> > http://www.energyplus.gov
> > 
> > The group web site is:
> > http://groups.yahoo.com/group/EnergyPlus_Support/
> > 
> > Attachments are not allowed -- please post any files to the 
appropriate folder
> > in the Files area of the Support Web Site.
> > 
> > Yahoo! Groups Links
> > 
> > 
> > 
> > 
> > 
> > 
> > 
> > 
> 
> 
> 
> ========================================================
> Michael J. Witte, GARD Analytics, Inc.
> EnergyPlus Testing and Support      
> EnergyPlus-Support@g...




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